What can be done for efficient parameter passing in perl?


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What is perl unshift array function?

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Explain the arguments for perl interpreter.

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Mention what is cpan?

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while(my($key, $value) = each(%hash) ) { print "$key => $value\n"; } my($key, $value); while(($key, $value) = each(%hash) ) { print "$key => $value\n"; } What is the different between these two code in case of "my" usage ?

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How to make the following assignment, as arrayreference assignment ? my $arr_ref='[1,2,3,4,4,'elem']';

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What happens when you return a reference to a private variable?

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What elements of the Perl language could you use to structure your code to allow for maximum re-use and maximum readability?

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